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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
Charles A. Riggs, Robert V. Tompson, Tushar K. Ghosh, Sudarshan K. Loyalka, Dabir S. Viswanath
Nuclear Technology | Volume 157 | Number 1 | January 2007 | Pages 74-86
Technical Paper | Nuclear Plant Operations and Control | doi.org/10.13182/NT07-A3803
Articles are hosted by Taylor and Francis Online.
Adsorption isotherms for water vapor on powdered cesium iodide are reported. Both macroscopic and microscopic (single-particle) samples of CsI powder from the same source were studied by two different techniques. The adsorption isotherms for the macroscopic samples were obtained using a Cahn 2000 Electrobalance, which leaves the sample uncharged during the measurement and utilizes a conventional microbalance to measure the relevant mass changes. The adsorption isotherms for the microscopic samples were obtained using a custom-made two-ring electrodynamic balance to measure the mass changes due to adsorption that occurred for single suspended charged particles of the CsI powder. Here, the relevant mass changes were determined from the changes observed in the required particle suspension voltages in the balance. The total charge on each particle studied was determined using the electron stepping technique. Based on the classification scheme of Brunauer, Emmett, and Teller, it is concluded that type III adsorption isotherms were observed for both the macroscopic and the single-particle CsI samples, which would indicate a multilayer adsorption process. The isotherms for the macroscopic and the single-particle CsI samples, while exhibiting the same basic shape, were found to vary greatly in magnitude. It is believed that this variation in magnitude is primarily due to the charge on the microscopic samples interacting attractively with the highly polarized water molecules and thus significantly increasing the multilayer adsorption of water. Some possible chemisorption was also indicated for both the charged and uncharged CsI, as evidenced by an inability to completely regenerate either the macroscopic or the microscopic samples.